<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <script src="https://github.highcharts.com/gantt/highcharts-gantt.src.js"></script>
</head>
<style>
  th.szy{
    background-color: #0c2e53 !important;
    color:#51a4d8 !important;
    font-size: 18px;
  }
  td.szy{
    background-color:#0c2e53 !important;
    color:#fff !important;
  }
</style>
<body>
  <div id="root"></div>
</body>
</html>
